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STM32F10x USART bootloader

Question asked by jamali.fatemeh on Jan 16, 2014
Latest reply on Jan 26, 2014 by jamali.fatemeh
I use STM32F103 in a project which is hard to access device after installation. Also it is manufactured in large quantity. I can get a serial port access to the out of device for updating firmware of device in future, but device is completely close and it is not possible to change status of BOOT0 & BOOT1 for entering system memory boot mode.

Is there any USART bootloader to use in STM32f103 which use to update device's program without changing status of MCU pins?